Home / 8,157.11-12,236.47-2,609.06

Finding the Fourth Proportional to 8,157.11, 12,236.47 and 2,609.06

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Solution

The fourth proportional to 8,157.11, 12,236.47 and 2,609.06 is: 3,913.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.11 : 12,236.47 = 2,609.06 : x
  2. Step 2: Convert to fraction form
    8,157.11/12,236.47 = 2,609.06/x
  3. Step 3: Cross multiply
    8,157.11x = 12,236.47 × 2,609.06
  4. Step 4: Simplify right side
    8,157.11x = 31,925,616.71
  5. Step 5: Solve for x
    x = 31,925,616.71/8,157.11
  6. Step 6: Final answer
    x = 3,913.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.